Химические Сдвиги Углерода-13 Алкилрезорцинов

Bitter, L; Lille, Ü; Lippmaa, E; Pehk, T

doi:10.3176/chem.geol.1970.4.02

Eesti NSV Teaduste Akadeemia Toimetised. Keemia. Geoloogia

1970

DOI: 10.3176/chem.geol.1970.4.02

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Химические Сдвиги Углерода-13 Алкилрезорцинов

L Bitter¹,

Ü Lille²,

E Lippmaa³

et al.

Abstract: При проведении цикла работ по изучению алкилрезорциков [ 1 ] особое значение приобрели методы определения их структуры. Из спектральных методов для этой цели применялись ИК и УФ спектрофотометрия [ 2 ~s ], масс-спектрометрия [ 6 -7 ] и ядерный

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¹³C NMR spectra of adamantane derivatives

Pehk¹,

Lippmaa²,

Sevostjanova³

et al. 1971

Org. Magn. Reson.

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The carbon-13 chemical shifts of mono-and 1,3-disubstituted adamantanes are reported. The effects caused by the substituents are compared with those met in aliphatic and alicyclic compounds. It is shown that the 1,4-interactions have only minor importance in 1-substituted adamantanes. The influence of polar groups on the chemical shifts of y-and 8-carbon atoms is a typical 'through-the-bonds' interaction and correlates with inductive parameters of the substituents.10-(20 PP.)

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¹³C NMR spectra of adamantane derivatives

Pehk¹,

Lippmaa²,

Sevostjanova³

et al. 1971

Org. Magn. Reson.

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Anti-tuberculosis Compounds from Mallotus philippinensis

Minter

Franzblau

et al. 2010

Natural Product Communications

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Bioassay-directed fractionation of the organic extract of Mallotus philippinensis gave five compounds (1-5), the most active of which against Mycobacterium tuberculosis was a new compound, 8-cinnamoyl-5,7-dihydroxy-2,2-dimethyl-6geranylchromene (1) for which the name mallotophilippen F is suggested. Compound (2), 8-cinnamoyl-2,2-dimethyl-7hydroxy-5-methoxychromene, was isolated from a natural source for the first time, while the remaining three compounds, rottlerin (3), isoallorottlerin=isorottlerin (4) and the so-called "red compound," 8-cinnamoyl-5,7-dihydroxy-2,2,6trimethylchromene (5), had been isolated previously from this plant. All compounds were identified by analysis of their spectra including 2D-NMR, which was used to correct the literature NMR spectral assignments of compounds 2-4. The C-13 NMR of 5 is reported for the first time.

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Химические Сдвиги Углерода-13 Алкилрезорцинов

Cited by 2 publications

References 4 publications

¹³C NMR spectra of adamantane derivatives

¹³C NMR spectra of adamantane derivatives

Anti-tuberculosis Compounds from Mallotus philippinensis

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Химические Сдвиги Углерода-13 Алкилрезорцинов

Cited by 2 publications

References 4 publications

13C NMR spectra of adamantane derivatives

13C NMR spectra of adamantane derivatives

Anti-tuberculosis Compounds from Mallotus philippinensis

Contact Info

Product

Resources

About

¹³C NMR spectra of adamantane derivatives

¹³C NMR spectra of adamantane derivatives